Desuperheater



Feb. '5, 1929. 1 1,701,233

5. HAGENBUCHER PESUPERHEATER Filed Feb. 8, 1924 Patented Feb. '5,19Z9. a p g e 1,701,233

UNITED STATES, PATENT 1 OFFICE.

EUGEN HAGENBUCHER, OF ESSEN, GERMANY, ASSIGNOR TO FRIED; KRUPP AKTIEN- GrI-TSELLSCHAFT,v OF ESSEN-ONTHE-RUHR, GERMANY. I

DESUTEERHEATER,

Application filed February 8, 1924, Serial No. 691,524, and in Germany March 1, 1923.

This invention relates to a desuperheater crates in the receiving chamber enough to be used in connection with a surface con- Water to change it to saturated steam. Theredenser for steam power plants operating With upon it is condensed in the condenser Z). superheated steam which undergo a large While there is now in the condenser a quan- 5 change in load during operation. In such tity of steam to be condensed increased'by condensing plants at times the exhaust steam the amount of evaporated Water, the cooling of the power machines enters the condenser in surface necessary is, on account ofthe relastill superheated condition, so that a part of tively high co-eflicient of heat exchange of the cooling surfaces of the condenser must the steam to'be condensed, considerably less 10 be used to cool thesteam down to its saturathan the cooling surface which is necessary tion temperature. This part of the cooling in order to bring the superheated steam Withsurfaces is therefore Withdrawn from its norout injected Water to saturation. 5o inal function. The heat exchange between t The further operation of the condenser the cooling surfaces and the superheated and the condensate conduit Will need no ex- 15 steam proceeds only slowlyunder the low planation. I.

pressures prevailing in the condenser, so that The chamber 6 can be placed in the exv in spite of the large difference in temperature haust conduit immediately behind the point between the superheated steam and the cool at Which Work is performed by the steam ing Water as compared With saturated steam, ithout changing the invention. 7 In each a relatively large cooling surface is required case fresh Water can always be used for satfor cooling the steam down to its saturation urating the steambecause the impurities septemperature. v arated out of the Water do not pass into the The purpose of the present invention is to condenser. eliminate this disadvantage by means of a I claim particular apparatus in a. simple manner. In a steam power plant operated vith suin the thawing one example of the subject per-heated steam under greatly varying loads, matter of the invention is somcwl'lat diagraun a condenser to which superheated steam is (15 matically shown in vertical section. intermittently (ltllV0if0ti from the power The surface condenser F) is connected in plant, and means for saturating the steam the customary manner to the exhaust conduit prior to its reaching the con denser, said means a Which opens into a receiving chamber 6 of comprising a Wet porous substance situated the condenser b. In the receiving chamber 5 in advance of the condenser and with whi h an open container K is arranged which holds the steam is passed in contact, said porous porous bodies of large surface kept contin- "substance being adapted to give up moisture 35 ually Wet by suitable means such as the Water to the steam.

supply pipe L, With Which the steam comes The foregoing specification signed at Essen, in contact. The superheated steam coming Germany, this 17th day of January, 1924. to the condenser through the conduit (6 evap- EUGEN HAGENBUCHER. 

